TDS Meter Digital Water Tester
Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case,-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More
$13.98
(5,545)
DEAL
Milwaukee Instruments MW102 PH and Temperature Meter
$121.71
(308)
APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp
Multi-Parameter Pocket Tester Kit
$120.60
(843)
Bluelab MONGUA Guardian Monitor for pH
Temperature, and Conductivity (TDS) Measurements in Water with Easy Calibration, 3 in 1 Digital Nutrient Meter for Hydroponic System and Indoor Plant Grow White
$289.99
(566)
CIZTADA Smart PH Tester for Water Hydroponics Digital PH EC TDS Meter with ATC High Accuracy Multi-Functional Water Tester for Indoor Plant Grow
DWC, Wine, Pools& Spas and Aquariums
$39.99
(35)
Myron L UltraPen PT2 UltraPen pH and Temperature Pen
$228.00
(24)
Bluelab MONGUACON Guardian Monitor Connect for pH
Temperature, and TDS in Water with Data Logging (Connect Stick not Included), Nutrient Meter for Hydroponic System and Indoor Plant Grow
$290.61
(89)
UEi DTH35 Digital HVAC Psychrometer Thermo-Hygrometer
Portable Relative Humidity Meter, Handheld Electronic in-duct Thermometer, Measures Wet Bulb Dry Bulb Dew Point Temperature Humidity
$79.34
(231)
Hanna Instruments HI 9813-6N Waterproof pH/EC/TDS Temperature Meter Clean and Calibration Check for Growers
to 50 Degree C, 9V Battery
$240.04
(172)
Greentest Portable Digital Nitrate Tester Food Radiation Detector Geigor Counter Water TDS Meter Tester for Fruit
Vegetable,Fish,Meat,Water
$148.99
(50)
Hanna Instruments HI 98121 Combination pH/ORP/Temperature Tester
$189.95
(101)
Oakton WD-35634-30 pHTestr 30 pH Tester
For Temperature
$141.64
(20)
Exact Industrial Test Systems Exact 486101 iDip Photometer
$187.99
(17)
Hanna Instruments HI98128 pHep 5pH/Temperature Tester
6-25/64" Length x 1-19/32" Width x 1" Height
$102.91
(95)
Hanna Instruments HI 98130 Waterproof pH/Conductivity/TDS Tester with ATC
High Range
$161.70
(49)
Multi-parameter pH/ORP/EC/CF/TDS PPM/Temperature Water Quality Tester BNC Electrode Rechargeable Online Monitoring Aquarium
Laboratory Hydroponics
$83.99
(176)
Milwaukee BEM500 ORP Meter with 110V Power and Mounting Kit
+/- 999 mV, +/- 5 mV Accuracy
$113.00
(2)
Apera Instruments PC60-E Replacement Probe for PC60 Multi-Parameter Tester
$44.47
(52)
RCYAGO Portable Dissolved Oxygen and Temperature Meter
DO Range:-40.00 mg/L, 0.1 mg//L Resolution, Digital Dissolved Oxygen Meter with Electrode Filling Fluid (No Backlight)
$92.99
(6)